I'll start.
2 carrots, 2 celery sticks, onion, 2 peppers, garlic - dice and fry off.
Add 800-1000L stock, 2 tsp cumin, 1 tsp coriander, 1 tsp paprika and a diced sweet potato (or 2).
Simmer for 20 mins or so, then blend smooth.
Can swap or add veg - things like courgette, aubergine, celeriac, tomatoes, suede all work.